cwtech 发布的帖子

@andrea1186 have you followed https://bbs.aw-ol.com/topic/2572/yuzuki-x-100ask-v851s使用的rtsp传输实时预览摄像头数据?_=1714720007248 with all steps?

sorry for your spent time. Thank you!

抱歉佔用您的時間。 謝謝你！

Hello!
It seems we have some sort of FDT corruption while modifying the bootargs by Syterkit. The probleem seems to be hidden inside update_bootargs_from_config() function. The function finds the /chosen node and appends mem parameter to cmdline. But that modified FDT is no longer recognized by the kernel, reporting "OF: fdt: Error -11 processing FDT".

This issue is reproducible in both v851s (Syterkit 0.1) and the current v853 version. In both cases we need to remove update_bootargs_from_config() call to make the system functional.

What can be the problem?
Thank you

你好！
看來我們在透過 Syterkit 修改 bootargs 時出現了某種 FDT 損壞。 這個問題似乎隱藏在update_bootargs_from_config()函數中。 該函數找到/chosen節點並將mem參數附加到cmdline。 但是修改後的 FDT 不再被內核識別，並報告"OF: fdt: Error -11 processing FDT"。

此問題在 v851s (Syterkit 0.1) 和目前的 v853 版本中都會重現。 在這兩種情況下，我們都需要刪除 update_bootargs_from_config() 呼叫以使系統正常運作。

可能是什麼問題？
謝謝

@yuzukitsuru awesome, we've already tested it works. Thank you very much

大家好，

我们已经用 V853 创建了一个小板，并希望 Syterkit 能够工作。 正如您从包含的日志中看到的那样，我们的 DRAM 在 Tina Linux 中工作没有问题。 但是使用 Syterkit 时初始化失败。 我希望你们能提供一些可能存在问题的反馈。

Hi everyone,

we have created a small board with V853 and would like to get Syterkit working. Our DRAM works without problems in Tina Linux as you can see from the included log. However when using Syterkit initialization fails. I would love some feedback from you guys what might be wrong.

Tina boot log

[26]HELLO! BOOT0 is starting!
[29]BOOT0 commit : 2a3ec52022
[32]set pll start
[34]periph0 has been enabled
[37]set pll end
[39][pmu]: bus read error
[42]board init ok
[44]DRAM use external ZQ!!
[46]chip id check OK
[48]POWER SETTING ERROR!
[51]trefi:7.8ms
[53][AUTO DEBUG] single rank and full DQ!
[57]trefi:7.8ms
[60][AUTO DEBUG] rank 0 row = 15 
[63][AUTO DEBUG] rank 0 bank = 8 
[66][AUTO DEBUG] rank 0 page size = 2 KB 
[70]DRAM BOOT DRIVE INFO: V0.16
[73]DRAM CLK = 936 MHz
[75]DRAM Type = 3 (2:DDR2,3:DDR3)
[78]DRAMC ZQ value: 0x7b7bfb
[81]DRAM ODT value: 0x42.
[85]DRAM SIZE =512 M
[87]dram_tpr4:0x0
[94]DRAM simple test OK.
[96]rtc standby flag is 0x0, super standby flag is 0x0
[101]dram size =512
[104]audio:avcc calibration
[106]card no is 0
[108]sdcard 0 line count 4
[111][mmc]: mmc driver ver 2021-12-27 10:07

Syterkit boot output

dram_para_t dram_para = {
        .dram_clk = 936,
        .dram_type = 3,
        .dram_zq = 0x7b7bfb,
        .dram_odt_en = 0x1,
        .dram_para1 = 0x0010f2,
        .dram_para2 = 0x0,
        .dram_mr0 = 0x1c70,
        .dram_mr1 = 0x42,
        .dram_mr2 = 0x18,
        .dram_mr3 = 0x0,
        .dram_tpr0 = 0x004A2195,
        .dram_tpr1 = 0x02423190,
        .dram_tpr2 = 0x0008B061,
        .dram_tpr3 = 0xB4787896,
        .dram_tpr4 = 0x0,
        .dram_tpr5 = 0x48484848,
        .dram_tpr6 = 0x48,
        .dram_tpr7 = 0x1621121e,
        .dram_tpr8 = 0x0,
        .dram_tpr9 = 0x0,
        .dram_tpr10 = 0x0,
        .dram_tpr11 = 0x00420000,
        .dram_tpr12 = 0x00000048,
        .dram_tpr13 = 0x34010100,
};

[    0.034503][T] GPIO: MUX pin = 233, num in bank = 9, addr = 0x02000154, val = 0xffffff5f, set cfg = 5                                                  
[    0.044185][T] GPIO: MUX pin = 234, num in bank = 10, addr = 0x02000154, val = 0xfffff55f, set cfg = 5
[    0.054237][I]  _____     _           _____ __   
[    0.059290][I] |   __|_ _| |_ ___ ___|  |  |_| |_ 
[    0.064342][I] |__   | | |  _| -_|  _|    -| | _| 
[    0.069438][I] |_____|_  |_| |___|_| |__|__|_|_|  
[    0.074508][I]       |___|                        
[    0.079578][I] ***********************************
[    0.084648][I]  SyterKit v0.2.3 Commit: 31e0ef3
[    0.089406][I]  github.com/YuzukiHD/SyterKit      
[    0.094511][I] ***********************************
[    0.099572][I]  Built by: arm-none-eabi-gcc
[    0.104018][I] 
[    0.105943][D] periph0 has been enabled
[    0.109889][D] sunxi clock init end
[    0.113542][D] cpu clk reg (#0x500): 0x03000301
[    0.118329][D] DRAM BOOT DRIVE INFO: V0.24
[    0.122634][D] DRAM CLK = 936 MHz
[    0.126057][D] DRAM Type = 3 (2:DDR2,3:DDR3)
[    0.130529][D] DRAMC ZQ value: 0x7b7bfb
[    0.134533][D] DRAM only have internal ZQ
[    0.139585][D] DX0 state: 3
[    0.142426][D] DX1 state: 0
[    0.145338][E] ERROR: auto scan dram rank & width failed
[    0.150901][E] auto_scan_dram_config() FAILED
[    0.155752][T] MMU: CR = 0x00c51879

[    0.034481][T] GPIO: MUX pin = 233, num in bank = 9, addr = 0x02000154, val = 0xffffff5f, set cfg = 5
[    0.044128][T] GPIO: MUX pin = 234, num in bank = 10, addr = 0x02000154, val = 0xfffff55f, set cfg = 5

Syterkit different params

syterKit .dram_tpr13 = 0x34000100

[    0.054110][I]  _____     _           _____ _ _   
[    0.059163][I] |   __|_ _| |_ ___ ___|  |  |_| |_ 
[    0.064198][I] |__   | | |  _| -_|  _|    -| | _| 
[    0.069251][I] |_____|_  |_| |___|_| |__|__|_|_|  
[    0.074304][I]       |___|                        
[    0.079348][I] ***********************************
[    0.084418][I]  SyterKit v0.2.3 Commit: 31e0ef3
[    0.089176][I]  github.com/YuzukiHD/SyterKit      
[    0.094229][I] ***********************************
[    0.099290][I]  Built by: arm-none-eabi-gcc
[    0.103675][I] 
[    0.105574][D] periph0 has been enabled
[    0.109537][D] sunxi clock init end
[    0.113165][D] cpu clk reg (#0x500): 0x03000301
[    0.117908][D] DRAM BOOT DRIVE INFO: V0.24
[    0.122204][D] DRAM CLK = 936 MHz
[    0.125671][D] DRAM Type = 3 (2:DDR2,3:DDR3)
[    0.130169][D] DRAMC ZQ value: 0x7b7bfb
[    0.134230][D] ZQ value = 0x2f
[    0.138287][E] ZQ calibration error, check external 240 ohm resistor
[    0.144889][E] ERROR: auto scan dram rank & width failed
[    0.150461][E] auto_scan_dram_config() FAILED
[    0.155329][T] MMU: CR = 0x00c51879